Nuclear Applications Project:

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Transcript of Nuclear Applications Project:

High-energy photons (gamma rays) are emitted from an isotope source (Cobalt-60) that disrupt living cells by damaging the DNA and other cellular structures. These photon-induced changes at the molecular level cause death of organisms or render organisms incapable of reproduction. How does it work?

http://www.isomedix.com/services/gamma-irradiation/history-of-gamma-irradiation/History of TechnologyFor organizations whose goal is production of sterile product in its final packaging, of high- and/or low-density, in large and/or small volumes, gamma is a flexible, simple, efficient and effective sterilization modality. Technology's Purpose- The gamma sterilization process is predictable and repeatable.

-Though a radioactive metal is used in gamma processing, the process does not make the product radioactive nor leave a residue on the product.

-Product can be shipped to the final user as soon as it exits the gamma irradiation facility.

- Gamma is flexible; the high penetration characteristics of gamma rays allow for sterilization of a great variety of products in any size

- Gamma is reliable; gamma processing relies on the exposure of products to a Cobalt-60 source, a simple and highly reliable process

- Gamma is versatile; gamma processing can treat a wide range of products, even challenging high density and heterogeneous products.

- Gamma is safe; while some modalities leave traces of toxic substances, gamma rays do not.

Pros- High levels of gamma ray exposure has negative health effects on living tissue and cells. (can be cancerous)Cons Isotope: Cobalt-60Obviously no form of radiation is going to be 100% safe, but gamma radiation is one of the safer forms. When used for sterilization, the rays are highly effective at killing micro-organisms, leaving no traces of radioactivity or residue on the product, although exposure to high levels ionizes the tissue in the human body. This method commonly kills cancerous cells, but gamma ray ionization can affect healthy cells. When high levels of gamma rays bombard a body, a resulting dangerous ionization of tissue can cause skin cancer.

Safety http://www.nordion.com/our_products/sterilization_technologies.aspCheck it out!Nuclear Applications Project:Radiation in Makeup Sterilization By: Macy Purdy & Kaylie Richardson(in English: the radiation zaps and kills the nasty harmful germy things) * the history of gamma irradiation dates back as far as 1895.* In 1963, the first gamma irradiator in the US was installed in New Jersey, for medical purposes. Scientists Involved:Paul Villard, a French chemist & physicist, discovered gamma radiation in 1900, while studying radiation emitted from radium. Villard's radiation was named "gamma rays" by Ernest Rutherford in 1903.(CLEANING/DISINFECTING)- Trained operator is required - Can even alter your DNA # of protons = 27 # of neutrons = 33As it's already used frequently, this technology doesn't have an apparent effect on the community. Both Macy and I are in support of gamma radiation technology. We find that when used with precaution, it's a very positive and effective method of undergoing various things, including makeup sterilization! sources: http://www.nordion.com/our_products sterilization_technologies.asp